Physics of Particles and Nuclei最新文献_第3页

Possible Manifestation of Compact, Stable Dark Matter Objects in the Solar System 太阳系中可能存在紧凑、稳定的暗物质天体

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624700977

Yu. E. Pokrovsky

{"title":"Possible Manifestation of Compact, Stable Dark Matter Objects in the Solar System","authors":"Yu. E. Pokrovsky","doi":"10.1134/S1063779624700977","DOIUrl":"10.1134/S1063779624700977","url":null,"abstract":"The study of the possible influence of compact stable dark matter (DM) objects on the formation of solar activity cycles [1] has been continued in relation to a primordial black hole (PBH) with a mass on the order of asteroids or planetary satellites. The numerical calculations used the most accurate astronomical data on the orbits of the planets and asteroids in the Solar System. All the dynamical calculations of the Solar System have been carried out in the post-Newtonian approximation, which is particularly important for calculating the significantly eccentric orbit of PBH, which passes close to (and even inside) the Sun’s surface. Such calculations make it possible to use the Solar System as a detector for a possible dark matter planet. It is known [2] that astronomical ground data limit the total mass of dark matter objects within the orbit of Saturn to no more than (1.7~, times {{10}^{{ - 10}}}) solar mass (~0.005 mass of the Moon or ~0.4 mass of the asteroid Ceres). It is shown that a PBH with a mass of (sim {kern 1pt} 1~,, times {{10}^{{ - 10}}}) solar mass (({{m}_{{{text{Sun}}}}})) in a highly eccentric orbit with a period of 11 years can manifest itself as a trigger of a solar dynamo with a cyclic activity of 11 years. It is also shown that along a particular PBH orbit, the observed variations in solar activity are in good agreement with the available experimental data. Furthermore, the gravitational interaction of such a PBH with the Sun and other planets of the Solar System (in particular with Mercury, Venus, Earth, Mars, Jupiter, and Saturn) leads to an explanation of the Maunder and Dalton minima, and other long-term changes in the amplitudes of the solar activity cycles.","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":"55 6","pages":"1383 - 1385"},"PeriodicalIF":0.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Principle of Relativity of Inertia in Both General and Entangled Relativities 论广义相对论和纠缠相对论中的惯性相对性原理

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624701132

O. Minazzoli

引用次数: 0

General Solution of the Schrödinger Equation 薛定谔方程的一般解法

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624701168

M. N. Sergeenko

引用次数: 0

Mutual Dependence between a Bosonic Black Hole and Dark Matter and the Explanation of Asymptotically Flat Galaxy Rotation Curves 玻色黑洞与暗物质之间的相互依存关系以及近似平坦的星系旋转曲线的解释

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624701004

B. E. Meierovich

{"title":"Mutual Dependence between a Bosonic Black Hole and Dark Matter and the Explanation of Asymptotically Flat Galaxy Rotation Curves","authors":"B. E. Meierovich","doi":"10.1134/S1063779624701004","DOIUrl":"10.1134/S1063779624701004","url":null,"abstract":"The possibility of an equilibrium static state of a collapsed black hole, surrounded by dark matter, makes it possible to understand the existence of flat rotation curves of stars on the periphery of a galaxy. Under the dominant gravity, a Bose–Einstein condensate is the energetically most favourable state of an extremely compressed black hole. It turned out that the longitudinal vector field, as a wave function, adequately describes the observed manifestations of dark matter. Considering as an example a condensate of Z, W, and H bosons of the Standard Model of Elementary Particles (with rest energy of the order of 100 GeV), the dependence of rotation curves of stars on the mass of a black hole at the galaxy center was investigated. With this composition of the black hole of a mass on the order of the solar mass (2 ×1033 g), the dark matter gives the dominant contribution to the gravitational field. In this case, the plateau on the galaxy rotation curve is explicitly expressed. As the black hole mass increases, a contribution to the gravity from the dark matter decreases, while a contribution from the black hole increases. The mass of the black hole at the center of the Milky Way galaxy is seven orders of magnitude greater than the solar mass. The contribution to the gravity from the black hole dominates. Therefore, in our galaxy, the rotation velocity of stars (Vleft( r right)) as a function of radius decreases in proportion to ({1 mathord{left/ {vphantom {1 {sqrt r }}} right. kern-0em} {sqrt r }}) in accordance with Newton’s law.","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":"55 6","pages":"1401 - 1407"},"PeriodicalIF":0.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Interactions of Axion-Like Dark Matter with Standard Model Particles 类轴心暗物质与标准模型粒子相互作用的影响

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624701089

A. Ya. Silenko

引用次数: 0

The Result of the Neutrino-4 Experiment, Sterile Neutrinos, Dark Matter, and the Standard Model Extended by Right-Handed Neutrinos 中微子-4（Neutrino-4）实验结果、无菌中微子、暗物质和由右旋中微子扩展的标准模型

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624700989

A. P. Serebrov, R. M. Samoilov, O. M. Zherebtsov, N. S. Budanov

{"title":"The Result of the Neutrino-4 Experiment, Sterile Neutrinos, Dark Matter, and the Standard Model Extended by Right-Handed Neutrinos","authors":"A. P. Serebrov, R. M. Samoilov, O. M. Zherebtsov, N. S. Budanov","doi":"10.1134/S1063779624700989","DOIUrl":"10.1134/S1063779624700989","url":null,"abstract":"The analysis of results of the Neutrino-4 experiment and the data of the GALLEX, SAGE, and BEST experiments confirms the parameters of neutrino oscillations claimed by the Neutrino-4 experiment ((Delta m_{{14}}^{2}) = 7.3 eV2 and sin22θ14 = 0.36) and increases the confidence level up to 5.8σ. This sterile neutrino thermalizes in the cosmic plasma, contributes 5% to the energy density of the Universe, and can explain 15–20% of the dark matter. It is discussed that the extension of the neutrino model by introducing two more heavy sterile neutrinos in accordance with the number of types of active neutrinos, but with very small mixing angles to avoid the thermalization, makes it possible to explain the large-scale structure of the Universe and bring the contribution of sterile neutrinos to the Universe dark matter up to a level of 27%. The dynamic process of generation of the dark matter, consisting of three right-handed neutrinos, is presented. It is shown that the current astrophysical data on the (^{4}{text{He}}) abundance make it impossible to draw a definite conclusion in favor of the model of three or four thermalized neutrinos.","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":"55 6","pages":"1386 - 1394"},"PeriodicalIF":0.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Testing General Relativity with Black Hole X-Ray Data 用黑洞 X 射线数据检验广义相对论

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S106377962470103X

C. Bambi

引用次数: 0

Fundamental Physics Asks Philosophers New Questions 基础物理学向哲学家提出新问题

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S106377962470117X

A. D. Panov

引用次数: 0

Astrophysical Tests of General Relativity 广义相对论的天体物理学检验

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624701028

A. F. Zakharov

{"title":"Astrophysical Tests of General Relativity","authors":"A. F. Zakharov","doi":"10.1134/S1063779624701028","DOIUrl":"10.1134/S1063779624701028","url":null,"abstract":"At the initial stage of its development, general relativity (GR) was verified and confirmed in a weak gravitational field limit. However, with the development of astronomical observation technologies, GR predictions in a strong gravitational field began to be discussed and confirmed, such as the profile of the X-ray iron (Kalpha ) line (in the case if the emission region is very close to the event horizon), the trajectories of stars near black holes and the shapes and sizes of shadows of supermassive black holes in M87* and Sgr A*. In 2005 it was predicted that a shadow formed near a supermassive black hole at the Galactic Center could be reconstructed from observations of ground based global VLBI system or ground—space interferometer acting in mm or sub-mm bands. In 2022 this prediction was confirmed since the Event Horizon Telescope (EHT) collaboration reported about a shadow reconstructions for Sgr A*. In 2019 the EHT collaboration presented the first image reconstruction around the shadow for the supermassive black hole in M87. In 2021 the EHT collaboration constrained parameters (“charges”) of spherical symmetrical metrics of black holes from an allowed interval for shadow radius. In 2022 the EHT collaboration constrained charges of metrics for the supermassive black hole at the Galactic Center. Earlier, we obtained analytical expressions for the shadow radius as a function of charge (including a tidal one) in the case of Reissner–Nordström metric. Based on results of the shadow size evaluation for M87* done by the EHT collaboration we constrained a tidal charge. We discussed opportunities to use shadows to test alternative theories of gravity and alternative models for galactic centers.","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":"55 6","pages":"1413 - 1419"},"PeriodicalIF":0.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1063779624701028.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Colour-Electric and Colour-Magnetic Confinement 色-电和色-磁约束

IF 0.6 4区物理与天体物理

Physics of Particles and Nuclei Pub Date : 2024-10-09 DOI: 10.1134/S1063779624701041

N. O. Agasian, Z. V. Khaidukov, M. S. Lukashov, Yu. A. Simonov

引用次数: 0